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inscription into the backfilled gully. Other methods for gully <br />• stabilization include the use of barriers, check dams, and erosion stops. <br />Treatments such as these can be accomplished with the use of straw bales, <br />rock, wood, Wettings, or mattings. These or other devices will be installed <br />within the actual rill or gully channel and will serve to both dissipate the <br />water flow and to allow sedimentation to occur upslope of the barriers. <br />Ultimately, vegetation will establish in the rills or gullies and will <br />assist in the soil stabilization. <br />Another method to decrease the water flow and to dissipate its erosive <br />energy is to provide a roughened surface at the bottom of the gully <br />channels. This can be accomplished by placing matting, rocks, tree and <br />shrub debris, or other material in channel bottoms. <br />The surface can also be roughened by ripping the base, which may <br />facilitate mixing the coarser, rocky material of the spoil material with the <br />gully bottom. <br />The area upslope of excessive rills and gullies can also be manipulated <br />• to decrease the amount of water flowing into existing rills and gullies. <br />Such techniques include contour furrowing, staggered furrows, spreader <br />dikes, diversion ditches, ripping and mulching. These dispersion techniques <br />may also be used down-slope of or over the regraded rills and gullies. <br />Again, one or a combination of the previously mentioned techniques may be <br />implemented for the repair of excessive rills and gullies. <br />Diversion ditches may be installed in some instances to channel <br />overland flow away from newly reclaimed areas. Diversion ditches will be <br />constructed as outlined in agls 24-8 through 24-9 of this Exhibit. <br />Each spring and possi le into summer, Colorado Yampa Coal Company will <br />initiate a rill and gully s rvey across the reclamation of Mine No. 3. The <br />monitoring of select ri lls and gullies will occur at that time as well. The <br />gully survey will begin as soon as weather conditions allow, which will <br />likely be in mid May. Locations of gullies will be denoted on maps along <br />with any applicable notes and descriptions. Repair and monitoring work <br />24-5 <br />